MCM69C232 Datasheet | Motorola Semiconductor

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MCM69C232/D Advance Information 4K x 64 CAM The MCM69C232 is a flexible content- addressable memory (CAM) that can contain 4096 entries of 64 bits each. The widths of the match field and the output field are programmable, and the match time is designed to be 160 ns. As a result, the MCM69C232 is well suited for data applications such as Virtual Path Identifier/Virtual Circuit Identifier (VPI/VCI) translation in ATM switches up to OC12 (622 Mbps) data rates and Media Access Control (MAC) address lookup in Ethernet/Fast Ethernet bridges. The match duty cycle of the MCM69C232 is user defined, with a trade- off between the time between matches and the number of new entries added to the CAM per second. - - - - - - - - - - - - - 4096 Entries 160 ns Match Time Mask Register to “Don’t Care” Selected Bits Depth Expansion by Cascading Multiple Devices 50 MHz Maximum Clock Rate Programmable Match and Output Field Widths Concurrent Matching of Virtual Path Circuits and Virtual Connection Circuits in ATM Mode Separate Ports for Control and Match Operations 200 ns Insertion Time if One of Twelve Entry Queue Locations is Empty 12 ms Initialization Time After Fast Insertion (at Power- Up Only) Single 3.3 V ± 5% Supply 100 Pin TQFP Package IEEE Standard 1149.1 Test Port (JTAG) TQ PACKAGE TQFP CASE 983A- 01 Related Products - MCM69D536, MCM69D618 (Dual I/O, Dual Address RAMs) - MCM67Q709A, MCM67Q909 (Separate I/O RAMs) - MCM69C432 (CAM) CONTROL PORT 12 x 64 ENTRY QUEUE MQ31 - MQ0 A2 - A0 DQ15 - DQ0 SEL WE IRQ DTACK RESET INPUT REG MATCH PORT STATUS/ CONTROL LOGIC 4K x 64 CAM TABLE K G LH/SM LL MC MS VPC This document contains information on a new product. Specifications and information herein are subject to change without notice. REV 3 1/15/98 © Motorola, Inc. 1998 MOTOROLA FAST SRAM MCM69C232...